1084. In the first and third rak‘ah that do not have tashahhud, such as the first and third rak‘ah of the ‘aÒr and ‘ishÁ prayers, recommended precaution dictates that one should sit stationary for a moment after rising from sujÙd and then stand up.

1812. If a person who has obtained wealth from somebody is certain that the person did not pay the khums owed on it, it will not be permissible for him to utilize it unless that person does not believe in the precepts of khums. The same will apply, based on obligatory precaution, if he doubts whether he has disbursed its khums or not.

1813. If a person uses his income (profits of earnings) to purchase a real estate that is not considered a part of his yearly expenditure during his financial year, he should pay its khums at the end of his financial year. In the event that he fails to pay its khums and its value appreciates, he should pay khums on the current value of the property. The same applies to items other than real estate, such as rugs or things similar.

1085. SujÙd should be performed on the earth or on things that grow from the earth and are not deemed edible or wearable, such as wood and tree leaves. Therefore, sujÙd on edible or wearable items—such as wheat, barley and cotton—or things that neither grow from the earth, nor are they a part of the earth—such as gold, silver, tar, asphalt, or any similar substance—is invalid. Obligatory precaution dictates that it is similarly invalid to perform sujÙd on valuable stones, such as turquoise or emerald.

1814. If a person buys – for example - some real estate using money whose khums has not been paid, and the property appreciates in value, then if he had not intended to buy the property as an investment, to be sold once it appreciates in value, such as buying it for the purpose of agriculture, given that he bought the property on credit and paid its price from the money whose khums has not been paid, he must pays the khums (one fifth) of the value that he bought it for.
However if he gives the money whose khums has not been paid, and says to the seller that he is buying the property with this money, then in the event that the ÎÁkim al-shar‘permits the transaction of one fifth of it, the buyer must pay the khums (one fifth) of the current value of the property.

1086. It is not permissible to perform sujÙd on vine leaves as long as it is normally edible.

1815. If a person who has not paid khums from the day he became a duty-bound Muslim, purchases an item which he does not require, from the profits of his trade, and one year has passed from the time he acquired the profit, he should pay its khums. However, if he purchases items he needs, such as household furniture, and they concur with his status, then if he knows that he purchased them during the year in which he acquired the profit, he will not have to pay khums on them. If however he does not know whether he purchased them during the year, or after it, obligatory precaution will dictate that he comes to a settlement with the ÎÁkim al-shar’.

1087. It is valid to perform sujÙd on things that grow from the earth, and serve as food for animals, such as grass and straw.

1088. It is valid to perform sujÙd on flowers that are not deemed edible. It is not valid however, to perform sujÙd on herbal medicine, if the herb itself is edible. Recommended precaution dictates that one should also abstain from performing sujÙd on herbal medicine, the water of which is used by means of boiling and steaming.

1089. The sujÙd performed on plants that are deemed edible in some parts of the world, and inedible in other parts is invalid. Similar is the case of sujÙd performed on unripe fruits.

1090. The sujÙd performed on limestone and gypsum is valid. Recommended precaution dictates that sujÙd should not be performed on baked limestone and gypsum, or brick and pottery made from mud unless one is compelled.

1091. One may perform sujÙd on paper that is made from a material on which sujÙd is valid, such as straw. However, to perform sujÙd on paper that is made from cotton or something similar is problematic.

1816. If a person extracts gold, silver, lead, copper, iron, petroleum, coal, turquoise, agate, alum, salt, or other minerals similar to these, he should pay its khums if the quantity has reached the relevant niÒÁb (limit point).

1092. The best thing to perform sujÙd on is the turbah of Imam Íusayn (Peace be upon him). After it, one should perform sujÙd on earth, stone or plants, in order of priority.

1817. The niÒÁb for minerals is fifteen mithqÁl of conventional minted gold. That is to say, if the value of the minerals extracted from the mine reaches fifteen mithqÁl of minted gold, he should pay its khums after deducting the expenses incurred.

1818. If the value of the extracted minerals is less than fifteen mithqÁl of minted gold, one will be liable to pay its khums if the profits acquired from it, or the profits acquired from it and other sources combined exceed his yearly expenditure.

1093. If a person does not possess anything on which sujÙd is valid, or if he possess it, but is unable to perform sujÙd on it due to extreme heat or cold, or similar reasons, he should perform sujÙd on his clothes, provided they are not made from silk. The precaution is that one should give precedence to clothing made from cotton and linen over those made from wool or soft wool.
If a person is unable to procure clothing, obligatory precaution dictates that he should perform it on turquoise, carnelian, and their like, or on paper that is made from cotton. If these are not available either, he should perform it on paper made from silk. If paper made from silk is not available, he should perform it on an object on which sujÙd would usually be invalid unless one is compelled. However, recommended precaution dictates that as long as it is possible to perform sujÙd on the back of one’s hand, one should abstain from performing sujÙd on an object on which sujÙd is usually invalid. If it is not possible to perform it on the back of one’s hand, one should abstain from performing it on other material while cotton, linen, tar or asphalt is available.

1819. The precepts of minerals do not apply to gypsum, lime, montmorillonite clay and red clay. If a person extracts any of these, he shall only be liable to pay its khums if the profits acquired from it, or the profits acquired from it and other things combined exceed his yearly expenditure.

1820. If a person acquires minerals he should pay its khums regardless of whether the mineral was above the surface of earth or underground, and regardless of whether it is situated in a land that is owned or a land that has no owner.

1094. The sujÙd performed on mud and soft clay, on which the forehead cannot remain stable, is invalid.